Metal barrel



O. F. A. E. GRUMPELT.

METAL BARREL.

APPLICATION FILED MAR. 15, 1.1.

1 4@3 %@4 Patented Jan. 10, 1922,

after may be called rolling hoops.

' Thus there will be a UNETEEJ) Parser @FFEQIE.

OSKAR FRITZ RIGHD EUESMANN, 0

I? HBU, GERMANY.

stirrer. Bra...

moaaoa.

Application filed March 15,

To all whom it may concern:

Be it known that I, OsKAR Fnrrz AMAN- DUS EMIL GRUMPELT, a subject of Germany, residing at Hamburg, Germany, have invented certain new and useful Improvement in Metal Barrels, of which the followin is a specification.

' etal barrels for conveying or'transporting materials of various kind are provided with more or less thick hoops, on which the barrel is to be rolled and which herein- Heretofore such barrels were made cylindrical and the rollin hoops were firmly attached to the barrel. uch construction of metal barrels was found particularly inconvenient, when it is intended to store away or ship empty barrels, since they occupied a very large space in comparison to their weight. But not alone this large space of room is felt as an inconveniency itself but also the costs of the freight are greatly to be taken into consideration. Therefore the present invention has for its object to reduce the space, occupied by a number of barrels, when stored in a room or railway car or ship for transporting. To enable such reduction of space, according to the present invention the barrels are made frusto conical and the rolling hoops are made removable. Such frusto conical barrels may have a fixed bottom and a removable cover for the broader end of the barrel. Thus, when the cover ,and the hoops are moved, the barrels may be telescoped into one another, so that a considerable number of empty barrels, generally made of galvanized sheet iron, can be stored up i2 a comparatively small room. The covers and the hoops can be also connected to a comparatively small bundle. large saving of.room, when the barrels are to be shipped, at the same time reducing the costs of the freight to 'a considerable extent. The room occupied by a number of barrels of the new type will be about one-fifth of the room which the same number of the same size barrels of the elder type occupied heretofore. It is also obvious that the barrels when filled may be stored in a more compact space than barrels of the other type.

The constructions of the removable rolling hoops may be various. Thus for instance the hoop may be divided on one side Specification of Letters Patent;

Patented Jan. 1 1), 1922.

1921. Serial No. 452,440.

and may be made yielding in diameter to enable means to be applied on the so formed ends of the hoop to draw them together when placed on the barrel. Such means may consist of In holes, through WhlCh a screw bolt may be passed to draw the ends together and thus clamp the hoop to the barrel.

Flg. 1 is a vertical section of a metal barrel, closed by a cover.

Fig. 2 is a horizontal section of the barrel, looking from below.

Fig. 3 is' a modification of the rolling hoop.

Fig. 4 is an elevation of a barrel, prov1de d with other modified rolling hoops.

Fig. 5 shows another modification of the rolling hoop and Figs. 6 and 7 are two different modificatlons of the barrel, to which hoops are applied constructed similarly to that shown in Fig. 5. f

In the constructions, shown in Figs. 1 to 4, the hoops are divided on one side and the ends of the hoop are provided with means to draw the ends together. In the construction, shown in Fig. 2, these means consist of two lugs a, a on the ends of the hoop c opposite one another. These lugs are perforated and provided with right and left hand thread, and into these perforations a-left and right hand screwbolt or spindle b is screwed. The head d of this bolt may be arranged in the middle of the bolt or spindle as shown in Fig. 2. By rotation of this spindle in one direction, the lugs a, a will be drawn together, thus inner also pulling the ends of the hoop towards one another, for which reason the hoop itself must be yielding. In Fig. 2 it is taken for granted that the hoop b is springy an in Fig. 3 the yieldingness is attained by making the hoop b in halves, the two halves being connected by a hinge joint '7. In this -modification the lugs 11, a are connected by a headed bolt 1), in which case for drawing the lugs a,'a' together, the nut 11' may be turned. When applied to a bar rel g in proper position, the two rolling hoops, which necessarily have equal outer diameter, will be clamped to the barrel by turning the screw-s indle b or the nut d of the bolt b'.' shape as shown in Fig. 2,

its elasticity and in the construction, shown in Fig. 3, the hoop will'yield by a slight rotation about the hinge joint 7". Evidently the hoop may have any desired cross-section as long as they are adapted to roll on the floor.

It ispreferable, though not absolutely necessary, to attach holdlng means such as rings j on the barrel by welding or by rivets or the like just below the place where the rolling hoops are clamped to its outer surface. In this case the rolling hoops must be adapted to be opened out to such extent that they can be slid over the holding hoops.

In the construction, shown in Figs. 5 to 6, the rolling hoop is not divided but is provided with a number of gaps h and the barrel will be provided with a corresponding number of holding lugs 2' just below the line where the hoop is to be situated. The lugs 71 are slightly narrower than the gaps h, so as to enable the hoop to be slipped over the barrel from below, the gaps h allowing the lugs i to pass. At one side of the gaps it the hoops are provided with a sloping edge is and the diameter of the hoops is so chosen that, when the hoops are slipped over the barrel. to such an extent that the outer diameter of the barrel corresponds with the inner diameter of the hoop, the corner is of the slope 7c and the gap it has just passed the lug i (as is shown in Fig. 6 with the lower hoop) and by rotating the rolling hoop in the direction of the arrow m, the hoop will be moved axially farther still owing to the slope is and thereby clamped to the barrel. The hoop will then be driven into the position as shown in Fig. 6 with the upper hoop. For rotating the hoop, lugs 17. are provided on the hoop against which blows are exerted by a hammer or the like.

The modification, shown in Fig. 7- differs from that shown in Fig. 6 only with regard to the cross-section of the hoop, so that it may be well understood that the shape of the cross-section of the hoops is immaterial for the present invention. p 4

When the rolling hoops are fastened to the barrels as shown in Figs. 6 and 7 they are so firmly jammed to the outer surface of the barrel that they cannot be loosened unintentionally. For loosening them, blows again must be exerted on the lugs n in opposite direction until the gaps h are opposite the lugs i whereupon the hoops will drop down. The lugs z' serve also for the same object as the holding rings j.

I claim:

1. A frusto-conical barrel comprising end closures and two rolling hoops, one of said hoops being located above and the other below the center of said barrel, said hoops having equal external diameters but the internal diameter of one of said hoops being greater than that of the other and one of said hoops being removable, whereby a number of said barrels when empty or filled may be stored in a compact space.

2. A frusto-conical barrel comprising a removable closure at one end and having two rolling hoops, said hoops having equal external diameters, one of said hoops being permanently secured to the top of the barrel and the other removably clamped to the barrel near to but below the center thereof, whereby a number of said barrels when empty or filled may be stored in a compact s ace.

3. A frusto-conical barrel'provided with a removable cover at one end and two rolling hoops, said hoops having equal external diameters, one of said hoops being permanently secured to the top of the barrel and constituting part of the retaining means for said cover, and the other remova ly clamped to the barrel near to but below the center thereof.

OSKAR FRITZ AMANDUS EIVllL GRUMPELT. Witnesses:

EMIL HAGER, PETER LAUER. 

